286 COMPOUND COPSES UNDER CONVERSION. 



that we have just been describing, have all a close analogy with 

 each other and possess the same characteristics of symmetry and 

 simplicity. 



The Special Scheme of Exploitations ought also to be clear and 

 precise as respects its form, which ought to be so constructed as to 

 meet every kind of difficulty that may be encountered in practice 

 ■with regard to the nature, march, and location of the ordinary fel- 

 lings. This object is easily enough attained, thanks to the fact 

 that a large proportion of the fellings are necessarily based on area, 

 and may, therefore, be rigidly fixed in advance for every successive 

 year for each Separate Block. 



We give below an example of a Special Scheme of Exploitations 

 to be made during the First Period of 40 years in a Working Circle 

 divided into 4 Blocks and already in a perfect state of preparation 

 for conversion. It will help to explain, better than any amount of 

 rules, the general procedure to follow. 



